div[name="lanui-scrolltop"] {
  position: fixed;
  right: 10px;
  bottom: 60px;
  background-color: #ccc;
  border-radius: 5px;
  box-shadow: 1px 1px 1px #969494;
  width: 30px;
  height: 30px;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  text-align: center;
  line-height: 30px;
}

div[name="lanui-scrolltop"]::after {
  content: "\21E1";
  top: 50%;
  position: absolute;
  margin-top: -14px;
  left: 50%;
  margin-left: -4.5px;
  text-shadow: 1px 1px 1px #8e8383;
}
div[class="lanui-scrolltop"]::after {
  content: "";
}
